What is my backset?

The backset is the distance from the edge of the door to the center of the bore hole. In the United States, there are two common backsets for residential door locks: 2 3/8 inches and 2 3/4 inches.


What is a mortise lock?

A mortise lock (mortice lock in British English) is a lock that requires a pocket - the mortise - to be cut into the door or piece of furniture into which the lock is to be fitted.


What is a tubular latch?

The Tubular Latch is a simple closing device commonly used on internal doors where no lock is needed. The Tubular Mortice Latch is an evolution from a Mortice Lock, downsized so that it can be fitted with much less effort, and with minimal drilling and cutting to the door required.


What is a strike plate?

A strike plate is a metal plate affixed to a door jamb with a hole or holes for the bolt of the door. When the door is closed, the bolt extends into the hole in the strike plate and holds the door closed.  A plate on the lockset itself (on the door, not the jamb) is instead called a face plate..